you dont have to get it renewed now thats crazy
it's good as long as its valid for 3 days past your return flight (in case there was a delay in connection or some other problem)
i had a flight where mine was expiring the day after my return flight the airline in europe did not want to let me fly i had to put up a big fight that lasted an hour and they finally let me go
technically they have no choice but to let you fly as long as your passport is valid, but in case it expired during my journey the airline would be responsible for whatever were to happen
2002 VW Golf GT TDI
2016 VW Passat BiTDI